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Laser cladding manufacturers: analysis of specific advantages of coaxial powder feeding laser cladding technology

Laser cladding manufacturers: analysis of specific advantages of coaxial powder feeding laser cladding technology

  • Categories:Industry news
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  • Time of issue:2020-09-03 13:24
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(Summary description)Laser cladding manufacturers have always believed that the coaxial powder feeding laser cladding technology generally uses semiconductor fiber output lasers and disk airborne powder feeders, and the cladding head adopts a circular spot scheme with light from the center. The powder is fed by beams, and a special protective air channel is set up, and the powder beam, light beam and protective air flow are at one point.

Laser cladding manufacturers: analysis of specific advantages of coaxial powder feeding laser cladding technology

(Summary description)Laser cladding manufacturers have always believed that the coaxial powder feeding laser cladding technology generally uses semiconductor fiber output lasers and disk airborne powder feeders, and the cladding head adopts a circular spot scheme with light from the center. The powder is fed by beams, and a special protective air channel is set up, and the powder beam, light beam and protective air flow are at one point.

  • Categories:Industry news
  • Author:
  • Origin:
  • Time of issue:2020-09-03 13:24
  • Views:
Information

Laser cladding manufacturers have always believed that coaxial powder feeding laser cladding technology generally uses semiconductor fiber output lasers and disk airborne powder feeders, and the cladding head adopts a circular shape with light from the center. In the spot scheme, the powder is fed in a ring or multiple beams around the beam, and a special protective gas channel is set, and the powder beam, the light beam and the protective air flow meet at one point. During the cladding work, a molten pool will be formed at this focal point, and as the cladding head moves relative to the workpiece, a coating is formed on the surface of the workpiece. So, what are the specific advantages of coaxial powder feeding laser cladding technology? See what laser cladding manufacturers say:

Laser cladding technology has the advantages of high degree of freedom and easy automation

As it moves to any plan during cladding, a cladding layer with the same appearance and quality can be obtained, so its cladding direction is not limited, and it can be used with industrial robots or multi-axis motion machine tools to perform surface fusion of any path or part of any shape. Cover, when used as a 3D printing print head, it can be used for laser coaxial powder feeding 3D printing.

The advantages of laser cladding technology have good inert gas protection in the molten pool.

Because the powder feeding method is air-borne powder feeding and a special inert gas flow channel is set on the cladding head, the molten pool is in a good local inert gas atmosphere during the cladding process, and the molten pool and the cladding layer are less oxidized and the cladding There are fewer oxide inclusions in the layer.

The advantages of laser cladding technology are that the molten pool is small, the powder is evenly heated, and the cladding layer has good crack resistance.

The spot size of coaxial powder feeding laser cladding is generally ∮1-∮5mm. At the same time, the powder is in uniform contact with the beam, and the heat transfer during the cladding process is more uniform, so the cladding layer has good crack resistance. Especially for the cladding of conforming materials containing ceramic particles such as tungsten carbide, it is easy to prepare a coating with no cracks and uniform tungsten carbide distribution.

Due to these three characteristics of coaxial powder feeding laser cladding technology, laser cladding technology is usually applied to the surface cladding modification and additive remanufacturing of high-precision parts and complex-shaped parts such as spindles, gears, and boxes. At the same time, metal 3D printing based on coaxial powder feeding laser cladding technology is mainly used in the net shape of large parts and the preparation of gradient materials, and has been widely recognized.

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